US2017096363A1PendingUtilityA1
Apparatus for producing porous glass preform
Est. expiryOct 5, 2035(~9.2 yrs left)· nominal 20-yr term from priority
C03B 37/01884Y02P40/57C03B 37/01294C03B 37/01406G02B 6/02152C03B 37/01486C03B 37/014
34
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Claims
Abstract
A production apparatus capable of suppressing the generation of rusts on a base material gripper and a rotation mechanism is provided in a production of a porous glass preform. In an apparatus for producing a porous glass preform by depositing glass fine particles, produced by a flame hydrolysis reaction using a burner, on a starting member gripped by a base material gripper in a reaction vessel, the base material gripper is covered with a cover, and gas is supplied to the inside of the cover and the gas is caused to flow from the inside of the cover to an inside of the reaction vessel.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . An apparatus for producing a porous glass preform formed by depositing glass fine particles, produced by a flame hydrolysis reaction using a burner, on a starting member gripped by a base material gripper in a reaction vessel, wherein
the base material gripper is covered with a cover, and gas is supplied to an inside of the cover and the gas is caused to flow from the inside of the cover to an inside of the reaction vessel.
2 . The apparatus for producing a porous glass preform according to claim 1 , wherein the gas flows at a linear velocity V of 0.001 m/second<V<1 m/second.
3 . The apparatus for producing a porous glass preform according to claim 1 , wherein the gas is clean air having 100 or less, per cubic foot, of particles with a diameter of 0.3 μm or less.Join the waitlist — get patent alerts
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